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| Mirrors > Home > MPE Home > Th. List > latnlej1l | Structured version Visualization version GIF version | ||
| Description: An idiom to express that a lattice element differs from two others. (Contributed by NM, 19-Jul-2012.) |
| Ref | Expression |
|---|---|
| latlej.b | ⊢ 𝐵 = (Base‘𝐾) |
| latlej.l | ⊢ ≤ = (le‘𝐾) |
| latlej.j | ⊢ ∨ = (join‘𝐾) |
| Ref | Expression |
|---|---|
| latnlej1l | ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵) ∧ ¬ 𝑋 ≤ (𝑌 ∨ 𝑍)) → 𝑋 ≠ 𝑌) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | latlej.b | . . 3 ⊢ 𝐵 = (Base‘𝐾) | |
| 2 | latlej.l | . . 3 ⊢ ≤ = (le‘𝐾) | |
| 3 | latlej.j | . . 3 ⊢ ∨ = (join‘𝐾) | |
| 4 | 1, 2, 3 | latnlej 18384 | . 2 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵) ∧ ¬ 𝑋 ≤ (𝑌 ∨ 𝑍)) → (𝑋 ≠ 𝑌 ∧ 𝑋 ≠ 𝑍)) |
| 5 | 4 | simpld 494 | 1 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵) ∧ ¬ 𝑋 ≤ (𝑌 ∨ 𝑍)) → 𝑋 ≠ 𝑌) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ∧ w3a 1087 = wceq 1542 ∈ wcel 2114 ≠ wne 2933 class class class wbr 5099 ‘cfv 6493 (class class class)co 7361 Basecbs 17141 lecple 17189 joincjn 18239 Latclat 18359 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5225 ax-sep 5242 ax-nul 5252 ax-pow 5311 ax-pr 5378 ax-un 7683 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3062 df-rmo 3351 df-reu 3352 df-rab 3401 df-v 3443 df-sbc 3742 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4287 df-if 4481 df-pw 4557 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-iun 4949 df-br 5100 df-opab 5162 df-mpt 5181 df-id 5520 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-iota 6449 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-riota 7318 df-ov 7364 df-oprab 7365 df-lub 18272 df-join 18274 df-lat 18360 |
| This theorem is referenced by: atnlej1 39718 3atlem4 39825 3atlem6 39827 dalemcnes 39989 lhpexle3lem 40350 cdlemd4 40540 cdlemd7 40543 cdleme0e 40556 cdleme3e 40571 cdleme9 40592 cdleme17c 40627 |
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